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MAURICE M. REILY, OF NEWr HAVEN,V CONNECTICUT.

Letters Patent No. 90,580, lated M a-y 25, 1869.

VENTILATOR The Schedule referred to nthese Letters Patent and makingpart o( the same.

To all whom 'it may concern.-

Be it known that I, MAURICE M. REILY, of New Haven, in the county of NewHaven, and State of Connecticut, have invented a new Improvement inVentilating Basements of Buildings; andI do hereby declare thefollowing, when taken in connection with the accompanying drawings, andthe letters of refereneemarkedtbereon, tobe a full, clear, and exactdescription ofthe same, and which said Idrawings constitute part of thisspecification, and represent, in-

Figure l, a section of the Wall and ioring of a basement, illustratingthe process of ventilation;

Figure 2, a perspective View of the ventilator; and in Figure 3, atransverse section of the same.

The object of this invention is to ventilate the space between the wallsand lining, and beneath the `flooring ofthe basement of buildings. Iothis end,

The invention consists in the arrangement of the ooring-timbers, and thefurrings on the walls, so that a connected communication exists over thewhole of the walls, and beneath the hoor, and this space communicatingto the dues, into which air is admitted above the ground, so as tocreate a draught in the u'es, to cause a circulation beneath thetlooring-timbers, and in the space between the walls and the ooring.

In order to the clear understanding of my invention, I will fullydescribe the same as illustrated in the accompanying drawings.

In placing the flooring A, I arrange -it upon bearings a, so that acommunication will be had over the Whole space beneath the ooring; andthe furring B,

ou the Wall, l arrange in similar manner upon bearings b, so as to leavea space communicating over the whole of the walls, and beneath the oors;anda-t convenient points, C, in the wall, I form iiues, into which theopen space beneath the floors and the Walls communicates; then, in thewalls above the surface of the ground, I arrange ventilators D,communoating'with, and seas to admit air from the outside into the dues,so that, when the walls are covered and the'oors laid, a perfectcirculation, and, consequently, thorough ventila tion will be maintainedwithin the walls and beneath the floor, preventing the usual dampness iubasementrooms. y v

The ventilator which I use, is shown in figs. 3 and 2, and consists in abox, c, formed with a net-work, f, upon the inside, with anropen slidingplate, G, upon the outside, working over a plate, H, the openings in thefixed plate corresponding to the openings inthe sliding plate, so thatthe ues may be closed or opened upon the outside, to regulate thedraught in the fines.

Having fully described my invention,

What I claim as new and useful, and desire to secure by Letters Patent,is-

In the basement of buildings, forming a communication beneath the floorsand around the walls, to lines, constructed. so as to admit externalair, for the purpose of ventilation, substantially as set forth.

Witnesses: MAURICE M. REILY.

J. H. SHUMWAY, A. J. TIBBYITs.

